65150717657 has 8 divisors (see below), whose sum is σ = 66138094176. Its totient is φ = 64163781792.

The previous prime is 65150717647. The next prime is 65150717689. The reversal of 65150717657 is 75671705156.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65150717657 - 2¹² = 65150713561 is a prime.

It is a super-2 number, since 2×65150717657² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65150717627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194093 + ... + 409845.

It is an arithmetic number, because the mean of its divisors is an integer number (8267261772).

Almost surely, 2^65150717657 is an apocalyptic number.

65150717657 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

It is an amenable number.

65150717657 is a deficient number, since it is larger than the sum of its proper divisors (987376519).

65150717657 is a wasteful number, since it uses less digits than its factorization.

65150717657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220327.

The product of its (nonzero) digits is 1543500, while the sum is 50.

The spelling of 65150717657 in words is "sixty-five billion, one hundred fifty million, seven hundred seventeen thousand, six hundred fifty-seven".